Definition of Dartford warbler in English:

noun

Recent Dartford warbler arrivals included a male at Sizewell in December 1994 which stayed until early January followed by another at Walberswick Common (a former nesting haunt) throughout January, February and March 1995.

The Department for Environment, Food and Rural Affairs, meanwhile, says the Thames Basin is home to 264 male nightjars (about 8% of the bird's total numbers in the UK), 149 pairs of woodlark and 445 pairs of Dartford warblers.

He said: ‘If that were to increase, we might well see many more nightjars and even the arrival of the Dartford warblers, which we don't have yet.